A Place where students explore Math

Today in the class we have a new unit. Which is Integers. Last year we were doing Integers adding and subtracting. This year we are doing Dividing and multiplying. But today were doing the review of adding and subtracting. Here are some reviews on subtracting and adding.

Example of Integers:

- Positive and negative Integers- Positive example: 1 (more than 0)

- Negative example: -1 (less than 0)

Pictorial Integers:

-Algebra Tiles

- Its like we did with those bingo chips last year, but its square.

- Thinking Money:

+ Integers (have)

- Integers (owe)

- (+5) + (-3) = +2 (You have 5 and you owe 3 = $2)

- (-3) + (+6) = +3 (You owe 3 but you gain 6 = $3)

A Number Line:

- Without the Brakets:

(+6) + (-5) = 1Into6 - 5=1 (grade 2 MATH!!)

- HomeWork:Mr.HerBeck gave us an Integer Sheet and the Homeworks are Page 39 - 50.

:Part A: Indicate whether each would result in a poitive or negative.1. Spending $27

sense your spending $27, your subtracting. (Negative)

2. Falling off a ladder

Your going down the ladder/fallen off, your subtracting. (negative)

:Part C: Graph each of the following on the give line (Ordering)

1. -6, +5, -4, +2, 0 (-6,-4,0,+2,+5)

2 -6, +5, -4, +2, -1 ( -6, -4, -1, +2 , +5)

:Part E: Place a greater than sign (>) or a less sign (1. +5 < +8

2. -5 < -2

:Part G: Write out the set of integers described in each.1. The integers greater than 0 but less than +5: 1, 2, 3 , 4 (Those are between 0 and +5)2. The integers greater than -4 but less than +6: -3, -2, -1, 0, 1, 2, 3, 4, 5